These are the ‘pillownauts,’ and they just got out of bed for the first time in 21 days. The paid volunteers for the European Space Agency laid with their feet up in a medical facility while scientists poked and prodded them to try to understand the effects of spaceflight on astronauts’ bodies.
One of the subjects who took part in this investigation said: “The first days of each session were the worst. The body needs to adapt and I had migraines and backaches."